CLASS RACER FORUM - View Single Post - Spark Plugs with Two-Step

west coast · 01-29-2017, 06:47 PM

Bobby this what I have been using NGK UR45. Mine are grey to white. On the 2 step same as you. You can run lean around the pits and return road cause you have very little load on the motor. With out fear of burning a piston. Somebody correct me if I am wrong still learning.

01-29-2017, 06:47 PM	#9
west coast Senior Member Join Date: Dec 2008 Location: Rainy Washington Posts: 609 Likes: 12 Liked 223 Times in 73 Posts	Re: Spark Plugs with Two-Step Bobby this what I have been using NGK UR45. Mine are grey to white. On the 2 step same as you. You can run lean around the pits and return road cause you have very little load on the motor. With out fear of burning a piston. Somebody correct me if I am wrong still learning. __________________ James Boyce 6052 K/SA Stock National record holder 2015,2018,2 times in 2022,2023